Engine-cylinder.



P. J. MESSER.

ENGINE CYLINDER.

APPLICATION ElLED JULY 20.1911.

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wn'massss INVENTOR PETER J. MESSER, 0F OLEAN, NEW YORK.

ENGINE-CYLINDER.

raoaeea Specification of Letters Patent.

Patented May 5, T919.

Application filed July 20, 1917. Serial No. M13747.

To all whom it may concern:

Be it known that 1, PETER J. MESSER, a citizen of the United States, and resident of U'lean, in the county of Cattaraugus and State of New York, have invented certain new and useful Improvements in Engine- Cylinders, of which the following is a specification.

This invention relates to means for coo1- ing internal combustion engine cylinders, and the objects and nature of the invention will be readily'understood by those skilled in the art in the light of the following explanation of the accompanying drawings illustrating what I now believe to be the preferred mechanical expression of my invention from among other forms within the spirit and scope thereof.

The object of the invention is to provide exceedingly simple and efficient means for greatly increasing the rapidity with which heat can be radiated from the cylinders of stationary and other internalcombustion verse air passages engine cylinders,

and with thisend in view a cylinder embodying my invention is characterized by a multiplicity of exterior elongated box-like members formed witlrclosely arranged perforations providing air passages longitudinally of the members and each member with a large number of transwith comparatively. sharp edge walls from which the heat is takenwith rapidity by the flow of air, and the cylinder of my invention is further characterized by said members each formed of thin sheet steel throughout its area formed with closely arranged perforations, said piece of sheet steel being struck up nto longitudinal trough form with its longitudinal edges cast into the cylinder walls.

The invention consists in certain novel features in, construction and in combinationand arrangements as more fully and particularly set'forth hereinafter Referring to the accompanying drawings: Figure 1, shows an engine cylinder of my invention in longitudinal section. v

Fig. 2 is a top plan of the cylinder, the upper end of the outside acket or casmg being broken away.

In the particular example illustrated, T

show a cast metal cylinder 1 of an internal combustion engine or the like.

This cylinder is provided with a multiplicity of approximately closely arranged parallel exterior longitudinal elongated boxlike or hollow heat radiating members 2, and also with a multiplicity of exterior heat radiating members 3, arranged on the head of the cylinder and preferably radiating from the central portion thereof and extending approximately to the outer edge of said head. The members 2 and 3 are of similar construction and approximately similar in shape or formation, and the mem bers 2 are all approximately similar, and the members 3 are also all approximately similar.

Each member is formed of an elongated strip of thin sheet steel, or the like, that is formed throughout its area with closely arranged perforations 4. This strip of thin closely perforated metal is then struck up or otherwise formed into longitudinal trough or open-side box form with approximately parallel flat'perforated side walls 5, and a longitudinal perforated outer side wall 6. The free edges of the side walls are cast into the cylinder walls, with the various mem bers 2, 3, closely arranged at the exterior of the combustion chamber of the cylinder approximately as shown.

The cylinder is inclosed within a steel or other suitable casing 7, having its walls spaced from the heat radiating members 2, 3. This casing is preferably/closed except for perforations or other cool air inlet openings 8, in the top wall thereof above the heat radiating members 3, and bottom suction outlet openings 9, below the open lower ends of the heat radiating members 2. Any suitable air exhausting means (not shown) is provided in communication with the exhaust openings 9, for creating minus pressure in openings 9, to maintain an approximately strong or plentiful inrush of cool air through openings 8, and around the cylinder and through the air chamber formed by the casing. This flow of'air sets up drafts or currents of air longitudinally the perforations particularly in view of the strong currents of air confined within and passing longitudinally through the box-like members. I have discovered that the I rapidity with which the heat is radiated and taken ofl by the air currents is greatly increased by providing the air passages having thin perforated side and outer edge walls. The air can thus flow in all directions through the radiating members into and from and through the radiating members. The members are approximately square or rectangular in cross section and present a .vast area of more or less sharp edges.

What I claim is: I

1. An internal combustion engine cylinder having a multiplicity of exterior three sided box-like heat radiating members, each member composed of a longitudinally elongated trough-like strip of thin sheet metal formed throughout its area with closely arranged perforations, and having its longitudinal edges cast into the cylinder wall.

2. An internal combustion engine cylinder, in combination with an exterior casing forming an air chamber in which the cylinder is located, said casing having a top cool air inlet and a bottom suction outlet,

said cylinder at its top and side walls hav ing exterior three-sided box-like heat radiating members providing longitudinal passages therethrough, each member being formed throughout the areas of its three sides with perforations forming a great multiplicity of transverse air passages to set up cross air currents into and from the longitudinal air passage of the member.

3. An internal combustion engine cylinder having a multiplicity of exterior closely arranged open-end three-sided box-like radiating members cast into its endand side walls, each member providing a longitudinal open end passage and having its three walls perforated to provide a multiplicity of transverse air passages to set up longitudinal and intersecting cross air currents.

In testimony whereof I afiix my signature in presence of two witnesses.

PETER J. MESSER.

Witnesses ALFRED TOTHILL, BERTHA E. TOTHILL. 

